# How do you find the domain and range of #f(x) = sqrt(4 - x²)#?

##### 1 Answer

Jul 2, 2015

Domain:

Range:

#### Explanation:

You want to avoid to have a negative number as argument of your square root, so you must set:

So, basically, your function can accept only

The maximum

Graphically:

graph{sqrt(4-x^2) [-10, 10, -5, 5]}